Light fixture



FIG. 1 is a perspective view of a light fixture showing my new design;

FIG. 2 is a front view thereof, the left side, right side, and back side views being identical thereto;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof.

The broken lines form no part of the claimed design. 

The ornamental design for a light fixture, as shown and described. 